Securing rabble-arms of roasting-furnaces.



- U. WB'DGB. SBOUBING BABBLB ABUS 0F BOASTING FUBNAOBS. APPLIOATIOI PILED IALB, 1910.

Patented Aug. 27, 1912.

3 SHEETS-SHEET 2.

WIII www Mim.

Panini@ Qin-fi t www@ dalla@ i Prenom dailies f @Fllt/E Specification of Lett-ers Eatenc.

.QABELE-LEMS OF EOASTING-FURNACES.

atented Aue. 2*?, $912.

.p'plcation 'ied March 5, 1910. Serial No. 548,023.

To all w'wm myconceen.

Be 1t known that I, UTLEY Vifnnon, a cit-x-y zen ot the United States, residing in Ardted ee a En more,

a. tleation,

The object oi' my invention to Wide a substantial Senne tween the f-entral rotating shaft and ie projecting i'ohle amis of en oe-roes like fuznace, en oisjeet Whicn l ett manne' hereinafter forth.,

beinhad :to the aff-soin aanvinff e in which-fi of part of the rotating shafty and one 1 threaded stem l2 oi the llgejy' are of the rabble arnis of the urnaeqwith a., clonnection constructed in accordance with my invention g Fig. is a transverse section of the same, partly in elevation, and i? 3,4-, 5, 6 and 7 ereviews illustrating various klmodiciitio'ns of my invention.

Referring, in the tirs; instance, to Figs. l

and 2 of `he diamine', l represents part of the central, holiow, rote, ng .slxaitt of the furnace, 2 part of the retrwtory casing with which the cut-side of the said sliettv is usually provided, in order to protect 1t. from the heat 'of the furnace, and 3 part of one of the rabble-carrying arms projecting from they of the hub projecting from this flanged poi'- tion into the hollow shaftsiiown at 9. 7 On this inwardly projecting portion ot the huh 1s a hose 10 suppoited upon Wings ll, and perforated for the passage ott che threaded stem 12 of a'ke .lf3V which meses 1 through slots m the nnbland tmongn it slot in the head 4.- of the rabble mln, tite este? tane of the key hearing; agen outer WallaI of the slots in the' huh and the oeveed inner fave the lie.' bearing' against coi responding@ bewled inner 'weil ot "i in theheed e. as shown in Fig. `i.

, enen? pair of nuts 14, the lower nut-bearing upon the boss 10 and the upper nut serving a lock nut, By this means the key 18 can be dra n upardly and seeurely looked in position, so to draw the heed 4 of the rabhier 5 of said head to bear firmly the seat at the oni-e1 end of the hui), proper eadjnst-ment of the key servingto n'zain'tein a tight fit between said shoulder and its seat lwhenever said tit beeomes loosened from. any canse. A firm and igiti support of the rabbie arm unen the shaft is thus provided, which ma)YA oe maintained. in 's gastight condition so n' Y e rlgure l. 1s a Vertical longltndinat section o to prevent leakage of gas from the willing chamber of the furnace into the hollow shaft, such leakage heincy further prevented, it' flesii'ed, by means of an asbestos or other ille paeking'l adapted to an external we in the head 4, as shown in Fig. l. ny diterent means may be employed, Within the scope of my invention, for maintaining the tight fit between the rabble erin and the huh, thus in Fig. 3 have illustrated a pau' of gibs or keys lt?e having their hev- .eled faces in' Contact and their fiat .faces 'beann ing, respectively, against the hub 9 and head 4, said keys being recessed for the passage of a bolt 17 having, at, the bottom, a head for bearing against one of the keys and at the top a nuti 1S adapted to the threaded stem of the boltV and bearing against the other key, .While in Fig. et, l have shown a cam or eccentric 19 carried by a transverse shaft. QOrnonnted so to rotate in bearings to elongated slots #t0 in the opposite sides et the head 4. said eccentric heilig contained Within a slot 2i in the head l, and bearing upon'the inner 'all of the slotl and the shaft 2.0 having'. et one end, a lever arni 22 Wherehy it can he manipulated. The 'arm is provided with a pawl 22 which engages a toothed segment on the hub, so as to 1etain the arni 522 in its ditlerentpositions ot' "edinstznent the mnstruftion shown' in 5, the head ot ille rabble arm provided with thi-ended hlocl's having heads Q6 let into witches in i lie-.d these lilooks sliding in lun; 27 in the hoh so to prevent turning' M e flifl the. huh and. heilig la), :i niet 2) winch hears awainst the l inner ele, oi' said huh and is provided with,

army mso-ugh the hub 6 and` in the opposite sides ot' the huh and adapted' suitable arms 30, whereby it can be enven-l 'xrintly turned. The blocks Q5, being separate mi the east iron rabble arm head.) can have bearing' against the inner wall of the slot 2l l ille head l and its other arm having an rnally threaded opt-nine,l for the recep- Il an adjusting Screw 3Q, which bears -Inib 9, and han a :Suitable lock nut 'iastmenip 1 n .in Fig. 7, the eend et the rabble arm io toothed, as at 34, fior enligagelncnt Vwitha pawl i5? hangv to the heb il and contained in a Slot in said hub so A o engage the toothed por Vl ol the rabble arin and retain the saine. in le: adjusted imeilion.

Ulher niialilications will readily Suggestiiieinselvee to those skilled in the art.

l. ',lhr' combination oi a hollow shaft, a hab carried thereby, a rabble arin seated in mid. hab= and adjustable tightening devices for said rabble arin having an outer bearing on the hab and an inner bearingr onthe :irni and Serving iloidraw said arm directly inward againsioits seat in the hub withoutrii-iaiing' the arin.

L'. The combination oi a hollow shaft, with a rabble arm carricdzlhereby andl devices loca led on tin` inside oi the Shaft and Serving `rare the rabble arm thereto, said devices boing :nljnslabli: so as to impart inward Mouvement to the rabble arm.

ai curate ihroadi cui upon ibeni for engage--' ly' it may be Secured into position' on of the head 3. The combination of a hollow Shaft, a hub thereon, a rabble arm seated on Said hub, threaded blocks secured to the rabble arm and a nut bearing on the hub and threade `for engagement. with the blocks so as to draw the rabble arm inwardly in respect to the hub.

4. The combination of ahollow shaft, an internally recessed heb thereon, an externally recessed rabble arm having a seat on said hub, keys adapted to the recesses in the abble arm and hab and Serving to prevent rotation of the arln in the hub, and means yfor ldrawing the arm inwardly in respect to the hub.. 4

5. rlfhe ('.foinbinaiion of a hollow shaft, a hub thereon, a rabble arm haviner a shoulder seated on said hub, and a headprojecting inwardly beyond said shoulder, and means interpoeed between Said inwardly project-` ing portionof the head and the hub, and serving to draw the shouldered portion of the rabble ann inwardly against its scat` on the hab.

The combination of a hollow shaft a' hub thereon, a rabble arm having a shoul er adapted to a seat. onr #aid hab, and a head projecting inwardly beyond the shoulder, said head havingr a packing ring for Innintaining a tight joint between the saine and the hub, and means for maintaining the` shoulder on the rabble arm in contact with its scat. i la teslinony whereof, I have signed my name lo this speeilication, in the presence of .two subscribing witnesses.

UTLEY WEDGE.

lVitnesses Ka'rn A.. Bnimme, llAzuiL'roN 1). TURNER. 

